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authorArnaldo Carvalho de Melo <acme@redhat.com>2007-04-25 18:04:18 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:25:31 -0700
commit9c70220b73908f64792422a2c39c593c4792f2c5 (patch)
tree2090ea10aaa2714a5e095bae8cc02e743c378a3a /net/ipv4/ipmr.c
parenta27ef749e7be3b06fb58df53d94eb97a21f18707 (diff)
downloadlinux-9c70220b73908f64792422a2c39c593c4792f2c5.tar.bz2
[SK_BUFF]: Introduce skb_transport_header(skb)
For the places where we need a pointer to the transport header, it is still legal to touch skb->h.raw directly if just adding to, subtracting from or setting it to another layer header. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ipmr.c')
-rw-r--r--net/ipv4/ipmr.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 05bc27002def..8f45c95db451 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1437,7 +1437,8 @@ int pim_rcv_v1(struct sk_buff * skb)
pim->group != PIM_V1_VERSION || pim->code != PIM_V1_REGISTER)
goto drop;
- encap = (struct iphdr*)(skb->h.raw + sizeof(struct igmphdr));
+ encap = (struct iphdr *)(skb_transport_header(skb) +
+ sizeof(struct igmphdr));
/*
Check that:
a. packet is really destinted to a multicast group
@@ -1490,7 +1491,7 @@ static int pim_rcv(struct sk_buff * skb)
if (!pskb_may_pull(skb, sizeof(*pim) + sizeof(*encap)))
goto drop;
- pim = (struct pimreghdr*)skb->h.raw;
+ pim = (struct pimreghdr *)skb_transport_header(skb);
if (pim->type != ((PIM_VERSION<<4)|(PIM_REGISTER)) ||
(pim->flags&PIM_NULL_REGISTER) ||
(ip_compute_csum((void *)pim, sizeof(*pim)) != 0 &&
@@ -1498,7 +1499,8 @@ static int pim_rcv(struct sk_buff * skb)
goto drop;
/* check if the inner packet is destined to mcast group */
- encap = (struct iphdr*)(skb->h.raw + sizeof(struct pimreghdr));
+ encap = (struct iphdr *)(skb_transport_header(skb) +
+ sizeof(struct pimreghdr));
if (!MULTICAST(encap->daddr) ||
encap->tot_len == 0 ||
ntohs(encap->tot_len) + sizeof(*pim) > skb->len)